Raising steam in locomotive-boilers



(N9 Model.)

RAI-SING STEAM IN LoGoMoTIVB BOILBRS. No. 347,420. Patented Aug. 1'7,v 1886.

.dtt'orney UNITED STATESv SATE'NT OFFICE..

VILLIAM H. COVELL, OF LOGAN, OHIO.

RAISING STEAM IN LOCOMOTlVE-BOILERS.

SPECIFICATION forming part of Letters Patent N o. 347,420, dated August Y1'7, 1886.

Application tiled March 9, 19H6. Serial No. 194,550. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM H. CowELr., a citizen of the United States, residing at Logan, in the county of Hocking and State of Ohio,

have invented certain new and useful Improvenients in Methods of Raising Steam in Locomotive-Boilers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable 1o others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

1 5 Figure l is a perspective view of the device. Fig. 2 is a diagrammatic view of a portion of a round-house in which the invention islocated.

This invention relates to the raising of steam in locomotives in the roundhouse as they 4are 2o needed for service; and it consists in the method and means hereinafter set forth and claimed.

In the annexed drawings, the letters A and B represent two boilers with their attendant appurtenances conveniently placed in the 25 round-house and at a level above that of the locomotiveboilers when the ocomotives are in the house. Passing around t e round-house, below the level of the tracks, are three pipes, C, D, and E-C and D preferably close together and E about .as Vfar from them as thelength of an ordinary locomotive-boiler. At a suitable point the pipe Cis connected with a pipe, F, leading to the boiler A, pipe D with apipe, G, also leading to boiler A, and pipe E with a pipe, H, leading to the boiler B. In the pipe G is placed a trap or drop, I, consisting of a box, within which are vertical partitions i i', the former, z', secured to the top, but not to the bottom; the latter, li,.to the bottom, but not to the top. This drop has a stop-cock, i.

At each pit or track the pipe C has a pipe, K, rising therefronnwhich is coupled to apipe, L, the latter being horizontal and passing over the pipe D, with which it is connected by a pipe, M, thc pipe L projecting beyond the pipe M, as at Z. The pipes K and M have globe-valves k and m, and the extension Z of pipe L has a stop-cock, Z. In a line with each set of pipes Kv and M the pipe E has a vertical pipe, N, furnished with a globe-valve, n, and stop-cock a. Pipe N and extension Z may have drops, like I, secured by flexible joints.

To have this apparatus ready for use all the valves are kept closed, and the boiler A :is kept with a large body of water and a steampressure of about fifty pounds, and the boiler B with a large steanrspace and a steam-press ure of about one hundred pounds.

Over each set of pipes K L M N a locomotive stands. Vhen it is desired to steam up, 6o the extension Z of pipe L is connected with the boiler X at the extreme rear end at the bottom, as shown at x, and the pipe N at theextreme front endat the bottom, as shown at y, there being suitable openings and. connections on the boiler. At the opening y the boiler is preferably furnished inside with a nozzle, y', which projects and opens to the rear. The stop-cock Z'and globe-valve k are first opened, and the hot water from the boiler A flows 7o through the pipes F C K L Z into the boiler.

as indicated by the arrow l. As soon as the boiler is full of hot water and thoroughly heated, the globeyalve k is closed, and the globe-valves m and n and stop-cock n are opened. Now, asA the pressure in the boiler B is twice that in the boiler A, steam from the boiler B will pass through the pipes H E N and ont at the nozzle y into the boiler X, forcing the water in said boiler out at rv, as indi- 8o cated by the arrow 2, through the pipes L, M, D, and G into the boiler A. This continues until thewater in the boiler X reaches the water-level, whenv the stop-cock Z and globevalve m are closed, stopping further flow. Steam continues to enter at y until the requisite pressure is obtained, when cock n and valve n are closed. Connection with pipes L and N is opened, and the locomotive leaves the round-house, fuel being thrown in as usual. 9c

By connecting the pipe L at the bottom or lowest point the hot water always rises and creates a uniform heat and equal expansion, the boiler being completely iilled with water before steam is admitted from boiler B.

By connecting the pipe N to thelocomotive below the water-line of the boilerX the steam enters the water and rises graduallyinto thesteamspace, and thus gradually increases the heat and expansion. By turning the nozzle y roo to the rear the steam drives any depositin the boiler toward the point x, and stirring up such deposit it is carried by the current out the pipe L. Any such deposit would accumulate in the drops I of pipes L o1' G, the iiow heilig sluggish therein, and any impurities which might corne with the water from the boiler A would also settle in the drop I of 5 pipe L, and in the steam from the boiler` B would settle in the drop I of the pipe N. A return-pipe distinct from the service-pipe is used, so that several locomotives may be charged at the same time.

Having described my invention, what I claim is l. The method of supplying locomotiveboilers with steam, which consists in introducing hot water into the boiler until the lat- 15 ter is supplied above the water-level, then i11- troducing steam into said boilerl to force out the water until it is reduced to the waterlevel, cutting oil' the further exit of the Water, and continuing the supply of steam until the 2o desired pressure is had, as set forth.

2. As a means of supplying locomotiveboilers with steam, two boilers, one of which has a service and return water-pipe and the other has a steam service-pipe, said pipes being adapted to be connected with the boiler of 25 a locomotive, as set forth.

As a means of supplyingr locomotiveboilers with steam, the combination of the boiler A, the pipes C, D, K, L, and M, with the boiler B, and the pipes H E N, such pipes 3o provided with suitable valves, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

XVILLIAM H. COYVELL.

vWitnesses:

lMoon WEAVER, J Essn B. BUTIN. 

